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The relative electrophoretic mobilities of a 30-kd protein and a 92-kd protein used as standars on an SDS polyacrylamide gel are 0.80 and 0.41, respectively. What is the molecular weight of a protein having a mobility of 0.62 on the gel?
How many liters of CO2 will be produced with the complete combustion of of methane (CH4) with 4.3L of oxygen?
iF light is 605 nm, what is the slit separation? 9 s podrive 9 f el > et 12) A 4.0 cm tall object is placed 60 cm away from a converging lens of focal length 30 cm. What is the nature and location of the image?
Mg +2HCl-> MgCl2 + H2 what volume of Hydrogen at STP is produced from the reaction of 50.0g and the equivalent of 75 g of HCl? Also, How much of the excess reagent is left over?
What is the theoretical yield of bismuth when 346 g of Bi2O3 reacts with excess carbon as shown below?
A stainless steel spoon weighs 25.2 g and is at a temperature of 18.5 oC. It is immersed in 81.7 mL of hot coffee (T = 84.0 oC) in a Thermos flask.
Determine what concentration of OH - is needed to dissolve 0.015 mol of Zn(OH) 2 zinc hydroxide in a liter of solution
Hydrogen cyanide is prepared from ammonia (NH3) and natural gas (CH4).2 NH3 (g) + 3 O2 (g) + 2 CH4 (g) → 2 HCN (g) + 6 H2O (g)
When there are branches in either the acid or the alcohol, how do you name the ester formed from the reaction of these two? For example,
what is the enthalpy change per mole of ethanol combusted? The specific heat capacity of water is 4.184 J/g×K and the molar mass of ethanol is 46.07 g/mol.
The half-life of a certain radioactive element is 1250 years. What percent of the atoms remain after 7500 years?
If a solution containing 60.998 g of mercury(II) perchlorate is allowed to react completely with a solution containing 10.872 g of sodium sulfide, how many grams of solid precipitate will be formed?
Determine the molecular formula of the compound with molar mass 336.5g mol-1 and empirical formula C 5 H 8 O?
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